fixes type error in function wrapFunctionAsNode

src/litegraph.d.ts

@@ -240,7 +240,7 @@ export const LiteGraph: {
     wrapFunctionAsNode(
         name: string,
         func: (...args: any[]) => any,
-        param_types?: [],
+        param_types?: string[],
         return_type?: string,
         properties?: object
     ): void;